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Slav-nsk [51]
3 years ago
8

Write an explicit formula for the sequence -3, 1, 5, 9 ... i think the answer is a_n=-3+4(n-1) i just need someone to double che

ck me :)
Mathematics
1 answer:
VLD [36.1K]3 years ago
8 0

Answer:

you are correct

Step-by-step explanation:

The sequence has a common difference between consecutive terms

d = 9 - 5 = 5 - 1 = 1 - (- 3) = 4

This indicates the sequence is arithmetic with explicit formula

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 3 and d = 4, thus

a_{n} = - 3 + 4(n - 1) = - 3 + 4n - 4 = 4n - 7

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\qquad\qquad\huge\underline{{\sf Answer}}♨

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